M12x1.75mm Stainless Steel Serrated Hex Flange Lock Nuts 10 Pcs Product Name : Hex Flange Nut;Fastener Type : Hex Serrated Flange Nut;Thread Diameter : M12/ 1/2" Thread Pitch : 1.75mm;Flange Diameter (d1) : 25mm/1";Width Across Corner Size (e) : 20mm/ 3/4" Width Across Flat Size (s) : 18mm/ 11/16";Nut Height (m) : 12mm/ 1/2" Material : 304 Stainless Steel;Color : Silver Tone Net Weight : 187g;Package : 10 x Hex FlangeNut